Fix Virtus.extended visibility
Fix Virtus.extended visibility

kristianmandrup/virtus,JustMikey/virtus,reevoo/virtus,faucct/virtus,hapiben/virtus,solnic/virtus,XescuGC/virtus,baojjeu/virtus,mallikarjunayaddala/virtus,artemeff/virtus,dslh/virtus,macressler/virtus,nuclearsandwich/virtus